Should be noted that the ones are encore are NOT the first episodes
From The Lost Media Wiki
Whoever wrote this didn't make it really clear, just said earlier episode were missing. Encore says it has s1 ep1 but they're listed as 1990 for the english and 1989 for French Canadian. They're also two completely different episodes, obviously.
Going to do my best to dig up old TV listings to get an idea on episode names to create a sort of guide to keep track of what's had and what's missing.